I know this is premature, but I thought I'd get the topic started because I will be in the market to replace my GX 470 next year. I have had 2 Landcruisers and 2 LX 470s (the last one being a 2001 model) that ultimately I traded for a GX. I put 56,ooo miles on my old LX, several hundred miles off road and in the worst weather imaginable, and loved the vehicle. I also do think the LX is a step above the GX in build quality, ride, carrying capacity, etc., and thus the interest. The reason I traded was that I wanted navigation and side airbags, and Lexus didn't offer those later vehicles in the color choices I wanted.
There is a very good walk around on YouTube of the LX 570 at the Quail Event in August, if you haven't seen it. Autospies did it. That gives the best view so far of the features of the vehicle.
The styling of the new 570 is starting to grow on me, but I also like the simple styling of the outgoing model. I suppose I worry a little, without much justification, that Lexus\Toyota will somehow cheapen the build quality of the new 570, like Mercedes has done over the last 10 years with many of their models, and is just now starting to rethink. I was constantly amazed at the structure and quality, both inside and out, of my 470.
Anyway, the next few months should be interesting as we await the debut of the new version.